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APPENDIX

INSOLUBLE SUBSTANCES (continued}.


	Melting-point.
	Boiling-point.
	
	Melting-point.
	Boiling-; point, i

Nitro-compounds (continued). Tri nitrobenzene .   . 0-Nitrotoluene    .   .
 ™~              JJ                  •    •
 p-         .,,
 T -2-4-Dinitrotoluene a-Nitronaphthalene fl-Nitracetanilide P-           »     (P- T53)
 Nitro-phenohi  Aldehydes and Acids — <7-Nitrophenol(p. 183) ;//-           ,,            .   . P"            11       (p. 183) Trlmtvophenol    (p. 185)     .   .      .
	122
 54
 l\ 78 207
 45
 96 114
 T22
 53 T4S
 I4T. 23S
 179
 =05
	223
 230 238
	Nitroso-compounds — /-Nitrosodinrtethyl-aniline (p. 157)   . /-Nitrosodiethyl-aniline   ....
	35
 84
 10(1
 36
 63
 T2S 9S T27
	"   i
 1 6 S6 95 M7

			Nitroso-jS-naphthol
 Alky I  Nitrites   and Nitrates— Ethyl nitrite   .   .   . ,,     nitrate   .   .   . Aniyl nitrite (p. 69) ,,     nitrate   .  .  .
 ! Azo- and Azo.\-y-com-;        pounds — A/oxybenzene     (p. 143)   ......
		
Nitroanisole    .   .   . 77/-Nitrobenzalde-hyde .      ...
					
0-Nitrobenzoic acid jit*             , , (p. 200) ..... /-Nitrobenzene acid 1-2-4-Dinitrobenzoie a.cid       .....
					
			1     Axohenxene (p. 145) Hydrazobenxene fp.
 i46) .....:.
 Diaxoaininobenxene
 ;      (P.. i?0 .....
 Aminoaxobenxene 1        (P-  i?2> .....
		
r-vs-Dinitrobenxoic Virid    .....
					

					
3. Contains Halogen.—Halogen compounds may
alkylene, aryl or add halides or halogen acids (V.^-., ethyl loromide,
ethylene bromide, bromobenzene, benzoyl chloride, or chloro
benzoic acid).
Alkyl) Alkylene and Aryl Halides are usually liquids or
solids specifically heavier than water and with a sweet penetrating
smell, or if aromatic compounds substituted in the side-chain,
they have a sharp penetrating smell and attack the eyes. They
are for the most part colourless, but the bromine and iodine
compounds usually acquire a brown colour on standing. Iodo~
form is naturally yellow. In the case of alkyl and alkylene
halides and aromatic compounds substituted in the side-chain,
alcoholic silver nitrate will, on warming, yield silver halide.
Strong methyl-alcoholic potash will, with the same compounds,
produce olefines and acetylenes (p. 64). The experiment should
*» be tried with the apparatus Fig. 86, and the gas collected